| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 12/25/2007 | US7311145 Re-use of recovered treating fluid |
| 12/25/2007 | US7311144 Apparatus and method for increasing well production using surfactant injection |
| 12/25/2007 | US7311035 Subsea hydraulic junction plate actuator with R.O.V. mechanical override |
| 12/23/2007 | CA2550840A1 Shock-release fluid fracturing method and apparatus |
| 12/22/2007 | CA2590734A1 Method of treating bottom-hole formation zone |
| 12/21/2007 | WO2007147112A1 Anchor system for packers in well injection service |
| 12/21/2007 | WO2007147072A1 Process for coating gravel pack sand with polymeric breaker |
| 12/21/2007 | WO2007147053A2 In-situ radiofrequency heating of oil shale |
| 12/21/2007 | WO2007147050A2 Combined electromagnetic thermal system for natural gas and oil recovery and environmental applications |
| 12/21/2007 | WO2007146644A2 Downhole flow improvement |
| 12/21/2007 | WO2007146067A2 Drilling fluid additive and base fluid compositions of matter containing b100 biodiesels; and applications of such compositions of matter in well drilling, completion, and workover operations |
| 12/21/2007 | WO2007145733A1 Compressible objects having a predetermined internal pressure combined with a drilling to form a variable density drilling mud |
| 12/21/2007 | WO2007144591A1 Apparatus and method for treating injection fluid |
| 12/21/2007 | WO2007144562A1 Controlled location of the precipitation of scale in reservoirs |
| 12/21/2007 | WO2007143845A1 Recovery process |
| 12/21/2007 | WO2007091898A8 Fluid injection device |
| 12/21/2007 | WO2007078375A3 Profile control apparatus and method for production and injection wells |
| 12/21/2007 | WO2007044603A3 Internally rotating nozzle for facilitating drilling through a subterranean formation |
| 12/21/2007 | WO2002103150A3 Tubing expansion |
| 12/21/2007 | CA2652406A1 Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud |
| 12/21/2007 | CA2646290A1 Downhole flow improvement |
| 12/20/2007 | US20070293404 Subterranean Treatment Methods using Methanol Containing Foams |
| 12/20/2007 | US20070293402 Highly branched polymeric materials as coating on weighting agents |
| 12/20/2007 | US20070293401 Highly branched polymeric materials as surfactants for oil-based muds |
| 12/20/2007 | US20070289818 Expandable Tubular Lubrication |
| 12/20/2007 | US20070289746 Arrangement and method for controlling and regulating bottom hole pressure when drilling deepwater offshore wells |
| 12/20/2007 | US20070289743 Degradable Fiber Systems for Stimulation |
| 12/20/2007 | US20070289742 Methods and compositions for well completion in steam breakthrough wells |
| 12/20/2007 | US20070289741 Method of Fracturing an Earth Formation, Earth Formation Borehole System, Method of Producing a Mineral Hydrocarbon Substance |
| 12/20/2007 | US20070289740 Apparatus and Method for Managing Supply of Additive at Wellsites |
| 12/20/2007 | US20070289736 Microwave process for intrinsic permeability enhancement and hydrocarbon extraction from subsurface deposits |
| 12/20/2007 | US20070289733 Wellhead with non-ferromagnetic materials |
| 12/20/2007 | US20070289472 Perforating gun loading bay and method |
| 12/19/2007 | EP1867832A1 Choke valve for fluid injection in geological formations |
| 12/19/2007 | EP1866519A2 Method of recycling fracturing fluids using a self-degrading foaming composition |
| 12/19/2007 | EP1730384A4 Clay stabilization in sub-surface formations |
| 12/19/2007 | CN200993188Y Petroleum drilling rig winch gearbox |
| 12/19/2007 | CN200993099Y Mechanical sealing device for screw pump ground driving device |
| 12/19/2007 | CN200993096Y Movable pump valve |
| 12/19/2007 | CN200993092Y Beam pumping unit driven hydraulic cylinder type rodless hydraulic pumping system |
| 12/19/2007 | CN200993005Y Oil well working condition monitoring device |
| 12/19/2007 | CN200993004Y Separator oil-gas continuousautomatic metering device |
| 12/19/2007 | CN200993001Y Non-clogging stratified fracturing pipe string and its non-clogging stratified fracturing device |
| 12/19/2007 | CN200993000Y Rotary shifting sand-conveying device capable of changing spiral sand conveyor tilt angle |
| 12/19/2007 | CN200992999Y Fire flooding stratified downhole gas (steam) injection converting device |
| 12/19/2007 | CN200992998Y Well completion sand-proof screen pipe with graded filtering performance |
| 12/19/2007 | CN200992997Y Water-carrying wellhead sand filling device |
| 12/19/2007 | CN200992996Y Oil well pumping promoting device |
| 12/19/2007 | CN200992995Y Oil well pumping promoter |
| 12/19/2007 | CN200992994Y Pumping unit operation indicating device |
| 12/19/2007 | CN200992993Y Energy-saving energizing integrated pipe string |
| 12/19/2007 | CN200992992Y Hydraulic oil-pumping device |
| 12/19/2007 | CN200992991Y Hydraulic driven oil pumping device |
| 12/19/2007 | CN200992990Y Special screw for balance weight |
| 12/19/2007 | CN200992989Y Open-tooth single-pendulum energy-saving beam pumping unit |
| 12/19/2007 | CN200992988Y Oil well forced-discharge negative-pressure blockage removing tool |
| 12/19/2007 | CN200991611Y Filtering type water dividing device |
| 12/19/2007 | CN101089362A Improved steam oil production method |
| 12/19/2007 | CN101089361A Automatic control device for deep well oil production layer constant-cutrrent waterflooding |
| 12/19/2007 | CN101089359A Constant-current eccentric water distribution plug |
| 12/19/2007 | CN100356062C Hydraulic oil pumping unit for inclined well |
| 12/19/2007 | CN100356034C Technology for modifying treatment of residual polymer in petroleum extrating polymer displacement proceture |
| 12/18/2007 | US7309445 Transferring slurry from a vessel |
| 12/18/2007 | US7308952 Underbalanced drilling method and apparatus |
| 12/18/2007 | US7308944 Expander tool for use in a wellbore |
| 12/18/2007 | US7308940 Flexible wellbore broach |
| 12/18/2007 | US7308939 Methods of using polymer-coated particulates |
| 12/18/2007 | US7308936 Methods of improving well bore pressure containment integrity |
| 12/18/2007 | US7308755 Apparatus for forming a mono-diameter wellbore casing |
| 12/18/2007 | CA2442805C Sintered wellscreen |
| 12/18/2007 | CA2436966C Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 12/18/2007 | CA2432892C Method and apparatus for controlling the distribution of injected material in a wellbore |
| 12/18/2007 | CA2425930C Process for recovering methane and/or sequestering fluids in coal beds |
| 12/18/2007 | CA2425604C Gas operated pump for use in a wellbore |
| 12/18/2007 | CA2412144C Isolation container for a downhole electric pump |
| 12/18/2007 | CA2410425C Tubular threaded joint capable of being subjected to diameteal expansion |
| 12/18/2007 | CA2356528C Working ship |
| 12/18/2007 | CA2163684C Successive gas and water displacement process |
| 12/18/2007 | CA2145740C A perforating gun having a plurality of charges |
| 12/13/2007 | WO2007143684A1 Adjustable swage |
| 12/13/2007 | WO2007143457A2 Oil and/or gas production system |
| 12/13/2007 | WO2007141715A1 Split stream oilfield pumping systems |
| 12/13/2007 | WO2007141465A1 Methods and devices for treating multiple-interval well bores |
| 12/13/2007 | WO2007141287A1 Cyclic steam stimulation method with multiple fractures |
| 12/13/2007 | WO2007140820A1 A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 12/13/2007 | WO2007140598A1 Methods and apparatuses for sagd hydrocarbon production |
| 12/13/2007 | WO2007140554A1 An ore heap leaching process for metal production with the aid of solar energy |
| 12/13/2007 | WO2007140549A1 The well rotary electric pump |
| 12/13/2007 | WO2007094900A3 Flexible well completions |
| 12/13/2007 | US20070287640 Hydrophobically modified fluid loss additives and viscosifier products |
| 12/13/2007 | US20070287636 some or all of the polyalphaolefin is replaced with an alternative formulation ingredient that is derived from non-petrochemical feedstocks, less expensive, and substantially more biodegradable |
| 12/13/2007 | US20070284112 Instrumented Tabular Device for Transporting a Pressurized Fluid |
| 12/13/2007 | US20070284110 Downhole flow improvement |
| 12/13/2007 | US20070284109 Methods and devices for treating multiple-interval well bores |
| 12/13/2007 | US20070284107 Heavy Oil Recovery and Apparatus |
| 12/13/2007 | US20070284106 Method and apparatus for well drilling and completion |
| 12/13/2007 | US20070284104 Fluid loss additive with improved rheological properties |
| 12/13/2007 | US20070284101 fracturing an underground formation to reduce viscosity of a well treating fluid; use the encapsulated peroxide selected from calcium peroxide, magnesium peroxide and zinc peroxide to complete break down, degrading the polyacrylamide |
| 12/13/2007 | US20070284100 Injecting a dispersion of seed particles of insoluble sulfates of barium, calcium in an aqueous medium into a hydrocarbon gas well; equivalent spherical diameter most preferably 100% less than 25 nm; percolating; controlled precipitation onto the seed particles, not the walls;antiscaling agents |
| 12/13/2007 | CA2654049A1 Cyclic steam stimulation method with multiple fractures |